Atomic Collisions And Spectra
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Atomic Collisions And Spectra
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Author : U Fano
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Atomic Collisions And Spectra written by U Fano and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
Atomic Collisions and Spectra provides an overview of the state of knowledge on atomic collision physics. The book grew out of lecture notes for a succession of courses at the University of Chicago in 1967-1979, which reported the new material as it was taking a definite form. It has been enriched since 1980, as the subject matured and continued to expand. The book is organized into four parts. Part A deals briefly with rather elementary items of general information. Part B then takes up in considerable detail those aspects of single-electron scattering whose mastery is essential for treating multielectron processes. Part C deals with multielectron processes with a residual—if often realistic—restriction, namely, that the multielectron interactions remain confined within a core region from which only a single electron escapes into alternative channels of a long-range field. Part D surveys studies of double (or multiple) escape of electrons from a core. The book is intended for multiple use as a graduate school text, a tool for independent study, or a reference for particular topics.
Atomic Collisions And Spectra
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Author : Ugo Fano
language : en
Publisher:
Release Date : 1986
Atomic Collisions And Spectra written by Ugo Fano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.
Problems after each chapter
Atomic Spectra And Collisions In External Fields
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Author : K.T. Taylor
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Atomic Spectra And Collisions In External Fields written by K.T. Taylor and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This volume contains papers associated with the conference "Atomic Spectra and Collisions in External Fields II", that took place July 30-31 1987 at Royal Holloway and Beford New College. The first meeting of this name was held at the National Bureau of Standards in Gaithersburg, Maryland in 1984, and, if any tradition can yet be said to have been established in the series, it is that the proceedings be written after the conference. We hope thereby to preserve some impression of the discussions that took place, which in both cases were vigorous and unihibited. Both meetings happen to have convened in proximity to major developments in the field. At the time of the first conference, results of experimental measurements of dielectronic recombination in electron ion beams were beginning to appear. These showed large discrepancies with theoretical calculations, which were attributed to the effects of rather weak electric fields on the highly-excited states that mediate the recombination process. This conjecture gave rise to widespread concern in the plasma physics community that the representation of dielectronic recombination in existing plasma models, in which it plays an important role in energy and ionization balance, might be seriously in error due to neglect of the effects of electric and magnetic fields. The subject of field effects on recombination processes was thus a major focus of the 1984 meeting.
Introduction To The Theory Of Atomic Spectra
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Author : I. I. Sobel'Man
language : en
Publisher: Elsevier
Release Date : 2016-04-20
Introduction To The Theory Of Atomic Spectra written by I. I. Sobel'Man and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-20 with Science categories.
Introduction to the Theory of Atomic Spectra is a systematic presentation of the theory of atomic spectra based on the modern system of the theory of angular momentum. Many questions which are of interest from the point of view of using spectroscopic methods for investigating various physical phenomena, including continuous spectrum radiation, excitation of atoms, and spectral line broadening, are discussed. This volume consists of 11 chapters organized into three sections. After a summary of elementary information on atomic spectra, including the hydrogen spectrum and the spectra of multi-electron atoms, the reader is methodically introduced to angular momentum, systematics of the levels of multi-electron atoms, and hyperfine structure of spectral lines. Relativistic corrections are also given consideration, with particular reference to the use of the Dirac equation to determine the stationary states of an electron in an arbitrary electromagnetic field. In addition, the book explores the Stark effect and the Zeeman effect, the interaction between atoms and an electromagnetic field, and broadening of spectral lines. The final chapter is devoted to the problem of atomic excitation by collisions. This book is intended for advanced-course university students, postgraduate students and scientists working on spectroscopy and spectral analysis, and also in the field of theoretical physics.
Excitation Of Atomic Spectra
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Author : Igorʹ Ilʹich Sobelʹman
language : en
Publisher: Alpha Science International, Limited
Release Date : 2006
Excitation Of Atomic Spectra written by Igorʹ Ilʹich Sobelʹman and has been published by Alpha Science International, Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.
"Excitation of Atomic Spectra provides a survey of the elementary processes of atomic collisions responsible for the formation of atomic spectra in the laboratory and astrophysical plasmas. It presents the usefull and rather simple approximate methods for calculation of cross-sections and gives a set of fitting formulas. Extensive tables list the cross-sections and rate coefficients for excitation and ionization of atoms and ions calculated by the code ATOM. A special appendix provides the formulas for the energy and transition matrix elements in the representation most convenient for computer calculations. The theory of spectral line broadening and its application to plasma spectroscopy is given. The general approach to the problem based on the methods of density matrix and quantum kinetic equation is also outlined."--BOOK JACKET.
Atomic Collisions In Solids
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Author : Sheldon Datz
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-21
Atomic Collisions In Solids written by Sheldon Datz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-21 with Science categories.
"Perhaps the most controversial aspect of this volume is the number (V) assigned to the conference in this series. Actually, the first conference to be held under the title "Atomic Collisions in Solids" was held at Sussex University in England in 1969 and the second at Gausdal, Norway in 1971, which would logically make the conference held at Gatlinburg, Tennessee, U.S.A. in 1973 the third (III). However, the appearance of the proceedings of the 1971 Gausdal Conference (published by Gordon and Breach) bore the number IV. The reasoning behind this was that, in. fact, two previous conferences had been largely dedicated to the same subject area. The first of these was at Aarhus, Denmark in 1965 and the second in 1967 was held in Chalk River, Canada. Hence, the number V for the 1973 meeting."--Page v
Fundamental Processes In Energetic Atomic Collisions
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Author : H.O. Lutz
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Fundamental Processes In Energetic Atomic Collisions written by H.O. Lutz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
In recent years, the impact of new experimental techniques (e.g., nuclear physics methods, availability of high-intensity light sources) as well as an increasing demand for atomic collision data in other fields of physics (e.g., plasma physics, astrophysics, laser physics, surface physics, etc.) have stimulated a renewed, strong interest in atomic collision research. Due to the explosive development of the various fields, scientists often even have dif ficulty in keeping up with their own area of research; as a result, the overlap between different fields tends to remain rather limited. Instead of having access to the full knowledge accumulated in other fields, one uses only the small fraction which at the moment seems to be of immediate importance to one's own area of interest. Clearly, many fruitful and stimulating ideas are lost in this way, causing progress to be made much more slowly than it could be. Atomic col lision physics is no exception to this rule. Although it is of basic interest to many other areas, it is mostly regarded merely as a (nonetheless important) tool by which to gain additional information.
Coherence And Correlation In Atomic Collisions
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Author : Hans Kleinpoppen
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Coherence And Correlation In Atomic Collisions written by Hans Kleinpoppen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
H. KLEINPOPPEN AND J. F. WILLIAMS It has only very recently become possible to study angular correlations and coherence effects in different areas of atomic collision processes: These investigations have provided us with an analysis of experimental data in terms of scattering amplitudes and their phases, of target parameters such as orientation, alignment, and state multipoles, and also of coherence parameters (e. g. , the degree of coherence of excita tion). In this way the analysis of electron-photon, ion-photon, atom-photon, or electron-ion coincidences from electron-atom, ion-atom, or atom-atom collisional excitation has led to a breakthrough such that the above quantities represent most crucial and sensitive tests for theories of atomic collision processes. Similarly, the powerful (e, 2e) experiments (electron-electron coincidences from impact ionization of atoms) have attracted much attention where improved experimental studies and detailed theoretical description provide a wealth of information on either the col lisional ionization process or the atomic structure of the target atom. Interference effects, many-electron correlations, and energy and angular momen tum exchange between electrons in a Coulomb field playa decisive role in the under standing of postcollision interactions. New results on coherence effects and orienta tion and alignment in collisional processes of ions with surfaces and crystal lattices show links to relevant interference phenomena in atomic collisions. In small-angle elastic electron-atom scattering the effect of angular coherence can be studied in a crossed beam experiment.
Electronic And Atomic Collisions
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Author : Donald C. Lorents
language : en
Publisher: North Holland
Release Date : 1986
Electronic And Atomic Collisions written by Donald C. Lorents and has been published by North Holland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Atoms categories.
Atomic Collisions On Solid Surfaces
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Author : E. S. Parilis
language : en
Publisher: North Holland
Release Date : 1993
Atomic Collisions On Solid Surfaces written by E. S. Parilis and has been published by North Holland this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Science categories.
This book deals with the theory of collisions of medium-energy atoms on the surface of a solid and the accompanying effects, namely, atom and molecule scattering, charge exchange, sputtering of atoms and large biomolecules, ion and electron emission. The topics covered include analytical theories and computer investigations which the authors made over the past 30 years. Special attention is paid to the development of the models and mechanisms for the phenomena occurring at atomic collisions on solid surfaces. The secondary processes are described for the various combinations of incident ions and a solid. Single- and multiple-charged ions are used as the incident ions bombarding targets being different both in structure (single crystal, polycrystal and amorphous) and electronic properties (metal, semiconductor and insulator). One of the major goals of the studies discussed is the development of a theoretical foundation for the diagnostics of the composition, structure and state of the surface of solids and thin films, as well as for their quality control in present day technology. The book will be of interest to all those involved in ion-solid interaction studies.